int mainmenu(void)
{
int ch;
char* mtext = " Please specify the number of the task. \n * You can choose on number from set = {1,2} \n * Specify \"0\" to exit\n" ;
char* errmes = " Error(!) = Main menu does not support this command.\n Make sure that your task number is from menu set of commands and try again. " ;
fflush(stdin);/*here we are cleaning the input = fflush(stdin) isn't cool variant;or use while (getchar() != '\n'); - but this'll stop program*/
printf("\n%s",mtext );
ch = getchar() ; /*user choose an item*/
